As far as private property, you're perfectly welcome to do exactly that.
As far as public property, you are not.
That has been answered about 8 times already and you constantly ignore it. And no, your business is NOT private property. It's public property. It becomes public property subject to public law the instant you apply for a business license and are granted that license.
If you want to be the racist, redneck idiot you are, then stay in your house with the wheels on it and don't venture into public.
If you venture into the public domain, you'll have to deal with everybody regardless of your racism.
It's that simple.